Founded in 1996 and located in the Presidio of San Francisco, the non-profit Internet Archive (IA) is building a permanent digital library of Internet sites and other cultural artifacts in digital form. Structured in several main sections (texts, audio, live music, moving images, software, education), the Archive receives donations from institutions and individuals worldwide and has working partnerships with the National Science Foundation and Library of Congress, among others. Each section, including hundred thousands entries and further divided in several sub-collections, can be easily browsed and/or searched through a simple or advanced options. A total (ever growing) amount of billions of webpages, and hundred thousands of images, recordings, live music concerts, texts are stored and organized in this archive. The entire archive content can be read and saved online, and/or downloaded in several different formats (from text and pdf to MP3, and other multimedia files). Access is free and open, and users can also directly upload their own material and/or other content not copyrighted (after a free registration). A special section, the WayBack Machine, includes the URL of 85 billion web-pages archived from 1996 on, and it is aimed at capturing 2 billion pages from around the world.